一种绿色的疏水性深溶解剂,用于从水相中提取
Javad Saien1, Mansoureh Bahiraei2, Farnaz Jafari2
1Department of Chemistry and Petroleum Science, Bu-Ali Sina University, Hamedan, Iran. saien@basu.ac.ir.
Scientific reports
|October 14, 2023
概括
一种新型的疏水性深度浸泡溶剂 (DES) 有效地从水中提取. 这种DES显示了高的溶液分布和分离因子,表明其在水溶液中有效去除的潜力.
科学领域:
- 绿色化学和溶剂工程 绿色化学和溶剂工程
- 分离科学与环境技术 分离科学与环境技术
背景情况:
- 深度浸泡溶剂 (DESs) 已因其在化合物提取中的有效性而闻名.
- 水溶液中的污染引起了环境和健康方面的担忧.
- 新型疏水式DES为提取效率的提高提供了潜力.
研究的目的:
- 评估一种新合成的疏水性DES,用于从水性介质中提取.
- 描述合成的DES并确定其物理性质.
- 为了研究三元系统的液体-液体平衡,并评估提取性能.
主要方法:
- 使用八酸和十二酸脂肪酸 (3:1摩尔比) 合成一种疏水性DES.
- 使用FTIR,1H和13C NMR对DES纯度和稳定性的表征.
- 通过云点定位和在不同温度 (293.2,298.2,308.2 K) 的折射率进行液-液平衡测量.
- 使用NRTL和UNIQUAC验证实验数据的热力学建模.
主要成果:
- 合成的DES呈现出低点 (8.3°C) 和确认的纯度/稳定性.
- 在醇提取过程中,获得了高的溶解物分布系数 (6.83219.7787) 和分离因子 (895.762770.17).
- 分布和分离因子都随着温度的增加而下降.
- NRTL 和 UNIQUAC 模型与实验连线数据 (RMSE < 0.0063) 显示出极好的一致性.
结论:
- 这种新型的疏水性DES显示出从水溶液中提取的特殊能力.
- 对于除应用,DES提供了一个有前途且高效的替代方案.
- 热力学模型准确地预测了-水-DES系统的相位行为.
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